FACILITY PLANNING- Worked answers for 6-11

# FACILITY PLANNING- Worked answers for 6-11 - FACILITY...

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QUESTIONS 6-11 Background Information: A manufacturing company is designing an assembly line to produce a new product, called "Widgets". It plans to use this assembly line 8 hours a day to produce 480 Widgets each day. The tasks necessary to produce a Widget are described in the following table: Immediate Task Followers Task Duration (in seconds) a b, c 30 b f 30 c d 6 d e 12 e f 54 f end 45 Use line balancing to design this assembly line, using the “shortest task time” (SPT) decision rule. Answer the following six questions, based on your design. _________________________________________________________________________________ 6. What is the cycle time of this assembly line, stated in seconds ? a) 0 b) 1 c) 30 d) 60 e) 177 ANSWER: D (60) Cycle Time = ___OT____ Where OT = Operating Time per Day D Where D = Desired Output Rate OT= 8 hours a day x 60 Minutes in an hour = 480 Minutes per Day D = 480 Widgets Each Day (Given Information) Cycle Time= 480 Minutes per Day = 1 Minute per Unit (60 Seconds) 480 Units per Day 7. What is the theoretical minimum number of workstations needed to create an assembly line to build this product? a) two stations b) three stations c) four stations d) five stations e) six stations ANSWER: B (three stations) The number of workshops that will be needed is a function of both the desired output rate and our ability to combine elemental tasks into workstations. N min is the theoretical minimum number of stations. N

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## This note was uploaded on 08/30/2011 for the course MGO 302 taught by Professor Hancock during the Fall '08 term at SUNY Buffalo.

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FACILITY PLANNING- Worked answers for 6-11 - FACILITY...

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